Tool Holder: Precision Tool Clamping Solutions for CNC Machining

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Tool Holder: Types, Applications, and Selection Tips for Machining Tools

A key component connecting the machine tool spindle and cutting tools, used for transmitting torque and positioning accuracy. Common types include ER collets (elastic design, wide clamping range, ±0.01mm precision for light machining), hydraulic chucks (high rigidity, vibration resistance, suitable for high-speed cutting up to 50,000rpm), and milling chucks (high-precision radial runout ≤0.005mm for milling).
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Advantages of the product

High-Precision Positioning

ER collets offer ±0.01mm clamping precision, while hydraulic chucks ensure radial runout ≤0.005mm, guaranteeing coaxial accuracy and surface finishes as low as Ra≤1.6μm. Essential for high-tolerance applications like medical implant machining.

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For general machining, these chucks achieve economical precision with a very low runout (≤0.01mm) of spring collet nut tightening. Unlocking, tightening, and loosening are all done in a cost effective manner using a nut on spring collets with tapered interiors. ER collets range from ER11 to ER40, covering tool diameters from 0.5 to 32 mm, thus Widely used in drilling and CNC milling. SK (Schunk) collets are available for greater radial runout with anti-vibration coatings for highspeed engraving and medical device machining, achieving runout ≤0.005mm. The replaceable quick change design allows for tool changes in under 15 seconds.

Frequently Asked Questions

What are the types of tool holders and their precision?

Common types include ER collets (±0.01mm precision for light machining), hydraulic chucks (radial runout ≤0.005mm for high-speed cutting), and milling chucks (high-precision radial runout ≤0.005mm).

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Customer Reviews

Frankie

Milling chucks’ quick-change mechanism reduced tool swaps to <15s, boosting batch production efficiency by 30% with CNC ATC. Tungsten carbide holders showed no wear after 2,000+ hours of continuous use—exceeded durability expectations.

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tool holder hsk tool holder vdi tool holder cat tool holder coolant tool holder
Rigid Anti-Vibration Design

Rigid Anti-Vibration Design

Hydraulic chucks use uniform clamping pressure (50-200bar) to eliminate tool slippage during interrupted cuts, reducing tool breakage by 30% in hard materials like Inconel. Suitable for deep-hole drilling and high-feed milling operations.
Thermal Stability

Thermal Stability

Heat-shrink tool holders maintain dimensional stability at temperatures up to 300°C, with thermal expansion coefficients ≤11×10⁻⁶/°C. Ensures consistent performance in prolonged high-speed machining of aerospace alloys.
Modular Tooling Solutions

Modular Tooling Solutions

Interchangeable collet sets (e.g., ER11-ER50) and adapter kits allow quick reconfiguration for different machine interfaces (BT, HSK, CAT). Reduces inventory costs by 40% in job shops handling diverse machining projects.